<!DOCTYPE html>
<meta charset="utf-8">
<title>
  Forced colors mode - backplate reference.
  Tests backplate invalidation.
</title>
<style>
  body {
    background-image: url("../resources/test-image.jpg");
    font-family: Ahem;
    font-size: 10px;
    forced-color-adjust: none; /* This turns the backplate feature off in
                                  forced colors mode. The backplate is
                                  simulated in testing using a Canvas
                                  background-color behind the text.
                                */
  }
</style>
<body>
  <span style="background-color: Canvas;">
    There should be a backplate covering one line of text.
  </span>
</body>
